Product comparison · 2 laptops

Acer Aspire 5520G-643G25Bi vs Lenovo ThinkPad T61 + 1GB

52specifications compared
22differ
30identical
70known for one product only

Key differences

Display resolution
- Aspire 5520G-643G25Bi:1280 x 800 pixels
- ThinkPad T61 + 1GB:1680 x 1050 pixels
Processor model
- Aspire 5520G-643G25Bi:TL-64
- ThinkPad T61 + 1GB:T8300
Processor frequency
- Aspire 5520G-643G25Bi:2.2 GHz
- ThinkPad T61 + 1GB:2.4 GHz
Processor cache
- Aspire 5520G-643G25Bi:1 MB
- ThinkPad T61 + 1GB:3 MB
Internal memory
- Aspire 5520G-643G25Bi:3 GB
- ThinkPad T61 + 1GB:2 GB
Total storage capacity
- Aspire 5520G-643G25Bi:250 GB
- ThinkPad T61 + 1GB:160 GB
Discrete graphics card model
- Aspire 5520G-643G25Bi:NVIDIA® GeForce® 8600M GS
- ThinkPad T61 + 1GB:NVIDIA Quadro NVS 140M
Wireless technology
- Aspire 5520G-643G25Bi:IEEE 802.11b/g
- ThinkPad T61 + 1GB:IEEE 802.11a/g/n

Side by side

Differences highlightedShow differences only

Comparison of Aspire 5520G-643G25Bi, ThinkPad T61 + 1GB
122 specifications	A Acer Aspire 5520G-643G25Bi View product	B Lenovo ThinkPad T61 + 1GB View product
Display1 differ
Display diagonal	39.1 cm (15.4")	39.1 cm (15.4")
Display resolutionDiffers	1280 x 800 pixels	1680 x 1050 pixels
Native aspect ratio	16:10	16:10
Display brightnessKnown for one	220 cd/m²	Unknown — not stated by the source
Processor3 differ
Processor manufacturerKnown for one	Unknown — not stated by the source	Intel
Processor familyKnown for one	Unknown — not stated by the source	Intel® Core™2 Duo
Processor modelDiffers	TL-64	T8300
Processor coresKnown for one	Unknown — not stated by the source	2
Processor threadsKnown for one	Unknown — not stated by the source	2
Processor frequencyDiffers	2.2 GHz	2.4 GHz
Processor cacheDiffers	1 MB	3 MB
Processor cache type	L2	L2
Processor front side busKnown for one	Unknown — not stated by the source	800 MHz
Processor socketKnown for one	Unknown — not stated by the source	Socket 479
Processor lithographyKnown for one	Unknown — not stated by the source	45 nm
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core 2 Duo T8000 Series
Processor codenameKnown for one	Unknown — not stated by the source	Penryn
Bus typeKnown for one	Unknown — not stated by the source	FSB
FSB ParityKnown for one	Unknown — not stated by the source	No
SteppingKnown for one	Unknown — not stated by the source	M0
Thermal Design Power (TDP)Known for one	Unknown — not stated by the source	35 W
TjunctionKnown for one	Unknown — not stated by the source	105 °C
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	410 M
Processing Die sizeKnown for one	Unknown — not stated by the source	107 mm²
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	12
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Memory1 differ
Internal memoryDiffers	3 GB	2 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory slotsKnown for one	Unknown — not stated by the source	2x SO-DIMM
Maximum internal memory	4 GB	4 GB
Storage1 differ
Total storage capacityDiffers	250 GB	160 GB
HDD interface	SATA	SATA
HDD speed	5400 RPM	5400 RPM
Graphics1 differ
Discrete graphics card	Yes	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® 8600M GS	NVIDIA Quadro NVS 140M
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	0.128 GB
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Number of built-in speakers	2	2
Speaker powerKnown for one	Unknown — not stated by the source	2 W
Cameraidentical
Front cameraKnown for one	Unknown — not stated by the source	No
Network1 differ
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wireless technologyDiffers	IEEE 802.11b/g	IEEE 802.11a/g/n
Bluetooth	No	No
Ports & interfaces6 differ
USB 2.0 ports quantityDiffers	4	3
Ethernet LAN (RJ-45) ports	1	1
DVI port	No	No
VGA (D-Sub) ports quantity	1	1
Firewire (IEEE 1394) ports	1	1
Headphone outputs	1	1
S/PDIF out portDiffers	Yes	No
Microphone in	Yes	Yes
Docking connectorDiffers	No	Yes
ExpressCard slot	Yes	Yes
CardBus PCMCIA slots quantityDiffers	0	1
CardBus PCMCIA slot typeDiffers	No	Type II
SmartCard slot	Yes	Yes
Modem (RJ-11) ports	1	1
TV-in port	No	No
TV-outDiffers	Yes	No
PS/2 ports quantity	0	0
Parallel ports quantity	0	0
Serial ports quantity	0	0
USB 1.1 ports quantityKnown for one	Unknown — not stated by the source	0
TV-out typeKnown for one	S-Video	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Touchpad	ThinkPad UltraNav
Software1 differ
Operating system installedDiffers	Windows Vista Home Premium	Windows Vista Business
Bundled softwareKnown for one	Acer Empowering Technology (Acer eNet, ePower, eAudio, ePresentation, eDataSecurity, eLock, eRecovery, eSettings, Management), Acer Arcade + Cinema, Video, Album, Music, Acer Arcade Deluxe + DV Wizard, VideoMagician, DVDivine, Acer HomeMedia, Acer GridVista, Acer Launch Manager, Adobe Reader, CyberL	Unknown — not stated by the source
Processor special featuresidentical
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	No
Embedded options availableKnown for one	Unknown — not stated by the source	No
Enhanced Intel SpeedStep TechnologyKnown for one	Unknown — not stated by the source	Yes
Execute Disable BitKnown for one	Unknown — not stated by the source	Yes
Idle StatesKnown for one	Unknown — not stated by the source	Yes
Intel 64Known for one	Unknown — not stated by the source	Yes
Intel Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt StateKnown for one	Unknown — not stated by the source	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	No
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	No
Intel Virtualization Technology (VT-x)Known for one	Unknown — not stated by the source	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Unknown — not stated by the source	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Insider™Known for one	Unknown — not stated by the source	No
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	No
Processor ARK IDKnown for one	Unknown — not stated by the source	33099
Processor codeKnown for one	Unknown — not stated by the source	SLAPR
Processor package sizeKnown for one	Unknown — not stated by the source	35 x 35 mm
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Batteryidentical
Number of battery cells	6	6
Battery life (max)Known for one	Unknown — not stated by the source	3.6 h
Poweridentical
DC-in jack	Yes	Yes
Security1 differ
Cable lock slot	Yes	Yes
Cable lock slot typeDiffers	Kensington	IBM
Fingerprint readerKnown for one	Unknown — not stated by the source	Yes
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Password protection typeKnown for one	BIOS	Unknown — not stated by the source
Weight & dimensions3 differ
WeightDiffers	2.75 kg	2.6 kg
WidthDiffers	366 mm	357.5 mm
DepthDiffers	274 mm	255 mm
HeightKnown for one	Unknown — not stated by the source	30 mm
Height (front)Known for one	3.36 cm	Unknown — not stated by the source
Height (rear)Known for one	4.26 cm	Unknown — not stated by the source
Other features2 differ
Infrared data portDiffers	Yes	No
Internal modem	Yes	Yes
Modem speed	56 Kbit/s	56 Kbit/s
Supplied AC adapter typeDiffers	AC	AC, UP
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Wake-on-Ring readyKnown for one	Yes	Unknown — not stated by the source
Modem typeKnown for one	ITU V.92	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More laptop comparisons

All laptop comparisons